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(No Model.) v WEY.

SPRING. No. 359,070. Patented Mar. 8, 1887.

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N PETERS. Pholo-Lilhcgnphur. Washing xxxxxx c.

UNITED STATES PATENT OFFICE.

GEORGE GOEWEY, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR OF ONE- HALF TOCHARLES B. DUNGAN, OF CAPE MAY, NEW JERSEY.

\SPRING.

$PECIPICATION forming part of Letters Patent No. 359,070, dated March 8,1887.

Application filed January :25, 1887. Serial No. 225,490. (No model.)

To an whom it may concern:

Be it known that I, GEORGE GOEWEY, a citizen of the United States,residing at Philadelphia, in the county of Philadelphia and State ofPennsylvania, have invented certain new and useful Improvements inSprings, of which the following is a specification.

My invention has for its object the construction ofa coiled spring intwo eccentric coils to formed of a strip of sheet metal that shall havean equal resiliency to two springs under pressure exerted thereon fromthe circumference; and it consists of a strip of sheet metal so curvedthroughout its length as to form two eccentric coils within itscircumference, the ends of the strip being united together through theouter coil by means of a rivet or its equivalent in such a manner thatthe inner coil is of smaller diameter than the outer, leaving aneccentric space between, except at the point of unity of ends, as willbe more fully understood from the following description.

In the accompanying drawings, which make a part of this specification,Figure 1 is an edge elevation of the spring. Fig. 2 is a face view.

Fig. 3 is a vertical sectional view.

Like letters of reference in all the figures indicate the same parts.

A is a strip of sheet metal, preferably steel, so curved throughout itslength as to form the two eccentric connected coils a a, and unitedtogether upon its ends by the rivet or bolt b.

In the drawings, the spring is placed between the bolsters B, the boltsb b preventing any shifting movement. As pressure is ex erted upon thecircumference of the outer coil, the eccentric circles are broughttogether, assuming the form of an ellipsis, and by the combined strengthof the coils give great resiliency, although one, yet acting as a pairin their capacity for resistance.

A series of these springs are particularly adapted for use in abedsteadwhere it is designed to effect equalization under verticalpressureasthereisuniforinityofactionthrough 5 them'in accommodation tothe load upon the bolster, yet they may be used for a variety ofpurposes where either vertical or lateral pressure is desired.

I claim as my invention and desire to secure by Letters Patent- A coiledspring constructed of a single strip of metal forming two eccentriccoils and united by a rivet passing through the end of the strip and theouter coil, substantially in the manner herein shown and described.

GEORGE GOEXVEY.

\Vitn esses:

THOMAS J. BEWLEY, S. H. J ONES.

